Select by relationship

The plugin allows to select records through tables based on relationships one-to-one or one-to-many specified inside a QGIS project.The plugin button will appear inside QGIS database menu. Anything in 3 steps:1.Charge in a QGIS project your layers;2.Set up the relationships between your layers inside the QGIS project properties;3.Click on selectFromRelations button (or run its from QGIS toolbar Database->Select From Relation -> Allow selections by relationship.

Now you can select records between many related tables.You can see an example in this videotutorial by Salvatore Fiandaca: linkThe plugin started by an original thread posted by Salvatore Fiandaca and developed by Andrea Borruso and Salvatore Larosa: Original threadA first post by Andrea Borruso: linkThe original python macro by Salvatore Larosa: linkA videotutorial by Salvatore Fiandaca where it's showed the use of python macro by Salvatore Larosa: linkAn other videotutorial by Salvatore Fiandaca for testing the macro python code embedded inside selectFromRelations plugin: link